Subject

    Computer Science

    Topic

    Computer Hardware

    What is 'wear leveling' in the context of SSDs?

    a)
    A technique to ensure the drive surface remains physically flat.
    b)
    An algorithm that distributes writes evenly across all memory blocks to prolong the drive's life.
    c)
    A process for checking the read/write speed of the drive.
    d)
    A method for reducing the power consumption of the drive.

    Explanation

    NAND flash memory cells, used in SSDs, have a limited number of write/erase cycles. Wear leveling is a crucial technique managed by the SSD controller that ensures data is written to different blocks over time, preventing any single block from being written to excessively and failing prematurely.

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